23131531142245 has 64 divisors (see below), whose sum is σ = 31890439134720. Its totient is φ = 16001622540288.

The previous prime is 23131531142201. The next prime is 23131531142273. The reversal of 23131531142245 is 54224113513132.

It is a cyclic number.

It is not a de Polignac number, because 23131531142245 - 2²³ = 23131522753637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9885142 + ... + 11999128.

It is an arithmetic number, because the mean of its divisors is an integer number (498288111480).

Almost surely, 2^{23131531142245} is an apocalyptic number.

It is an amenable number.

23131531142245 is a deficient number, since it is larger than the sum of its proper divisors (8758907992475).

23131531142245 is a wasteful number, since it uses less digits than its factorization.

23131531142245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114254.

The product of its digits is 86400, while the sum is 37.

Adding to 23131531142245 its reverse (54224113513132), we get a palindrome (77355644655377).

The spelling of 23131531142245 in words is "twenty-three trillion, one hundred thirty-one billion, five hundred thirty-one million, one hundred forty-two thousand, two hundred forty-five".